typeerror cannot read property code example

Example 1: cannot read property

/* This error occurs in Chrome Browser when you read a property or call 
a method on an undefined object. */
// To handle it, use "Optional Chaining" compatible with Node.js v14.0.0

Syntax -> ?.
Usage ->
let obj;
console.log(obj.a) // Cannot read property 'a' of undefined
console.log(obj?.a) // Works like a charm

Example 2: cannot read property

JavaScript TypeError is thrown when an operand or argument passed to a function is incompatible with the type expected by that operator or function. This error occurs in Chrome Browser when you read a property or call a method on an undefined object .JavaScript TypeError is thrown when an operand or argument passed to a function is incompatible with the type expected by that operator or function. This error occurs in Chrome Browser when you read a property or call a method on an undefined object .